@article{weko_14143_1,
   author	 = "VascoThudichumVasconcelos",
   title	 = "Recursive Types in a Calculus of Objects",
   journal	 = "情報処理学会論文誌",
   year 	 = "1994",
   volume	 = "35",
   number	 = "9",
   pages	 = "1828--1836",
   month	 = "sep"
}